[STABLE,0.14,03/14] block/vdi: Fix wrong size in conditionally used memset, memcmp

Submitted by Kevin Wolf on Feb. 7, 2011, 12:46 p.m.

Details

Message ID 1297082796-1369-4-git-send-email-kwolf@redhat.com
State New
Headers show

Commit Message

Kevin Wolf Feb. 7, 2011, 12:46 p.m.
From: Stefan Weil <weil@mail.berlios.de>

Error report from cppcheck:
block/vdi.c:122: error: Using sizeof for array given as function argument returns the size of pointer.
block/vdi.c:128: error: Using sizeof for array given as function argument returns the size of pointer.

Fix both by setting the correct size.

The buggy code is only used when QEMU is build without uuid support.
The bug is not critical, so there is no urgent need to apply it to
old versions of QEMU.

Cc: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 4f3669ea5bd73ade0dce5f1155cb9ad9788fd54c)
---
 block/vdi.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

Patch hide | download patch | download mbox

diff --git a/block/vdi.c b/block/vdi.c
index ab8f70f..116b25b 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -119,13 +119,13 @@  void uuid_unparse(const uuid_t uu, char *out);
 #if !defined(CONFIG_UUID)
 void uuid_generate(uuid_t out)
 {
-    memset(out, 0, sizeof(out));
+    memset(out, 0, sizeof(uuid_t));
 }
 
 int uuid_is_null(const uuid_t uu)
 {
     uuid_t null_uuid = { 0 };
-    return memcmp(uu, null_uuid, sizeof(uu)) == 0;
+    return memcmp(uu, null_uuid, sizeof(uuid_t)) == 0;
 }
 
 void uuid_unparse(const uuid_t uu, char *out)